Loose leaf binder



Sept. 22, 1936. R, J, DEWAR 2,054,793

LOOS/E LEAF BINDER Filed Sept. 7, 1934 INVENTOR. @0550? (J DEM/A0 a vATTORNEY.

Patented Sept. 22, 1936 UNITED STATES PATENT OFFICE son-J ones Company,

Chicago, 111., a corporation of Massachusetts Application September 7,1934, Serial No. 743,084

2 Claims.

This invention relates to a loose leaf binder, and particularly to aresilient, light weight cover for the same.

It is an object of this invention to provide an inexpensive, resilient,light weight cover that will have the appearance of a conventionalcover. Another object of this invention is to provide a resilient coverthat will prevent the rings of the binder from bulging the outer surfaceof the binder out of shape at the points where the rings come in contactwith the covers. Other objects of the invention will become apparentupon reading the following description taken in conjunction with theaccompanying drawing, in which Figure 1 is a perspective view of a looseleaf binder, with a portion of the cover broken away to illustrate thestructure; and

Figure 2 is a cross-sectional view taken along the line 11-11 of Figure1.

In the drawing, the reference numeral 2 indicates a back member whichpreferably comprises a strip 3 of corrugated board provided with smoothfacing strips 4 and 5 integrally united therewith. Separate covermembers 6 and I are positioned on opposite sides of the back member 2.Each cover member comprises a sheet of corrugated board 8 provided withsmooth facing sheets 9 and Ill united therewith. The inner facing sheetis preferably colored or suitably decorated on its exposed surface so asto eliminate the necessity of a separate lining for the inside of thebinder.

A single sheet I I, of paper, fabric or other suitable binding materialcovers the entire outer surface of the back and cover members and isfolded over against the inside of the binder at its edges. A strip l2,of paper, fabric or any other suitable material is adhered to the innersurface of the back member and to the adjacent edges of the covermembers. The cover members are spaced slightly from the edges of theback member and the strip I2 is adhered to the binding material II atthese areas to form hinges for the cover members.

The sheet holding mechanism of the binder includes a. plurality ofdivided rings [3 having their base portion l4 positioned adjacent theback member 2 and covered by means of a cover plate I5 secured to theback member 2 by means of rivets or eyelets I6. The particular type ofring mechanism is not material to the present invention and any desiredmechanism may be used in the binder.

The corrugated board used in the covers may be ofany desired thicknessto give the completed binder a luxurious appearance without adding anyweight or expense to the binder. The cushioning effect of the corrugatedboard is of particular advantage at the points at which the rings engagethe covers when the binder is closed. In the case of ordinary cheaploose leaf binders,

the rings press through the covers and distort the covers in a shorttime. The resiliency of the corrugated board allows the rings to pressinto the inside of the covers, but protects the outer surface of thecovers from the distortion.

While I have described a preferred embodiment of my invention in detail,it will be understood that the description thereof is illustrativerather than restrictive, as many details may be modified or changedwithout departing from the spirit or scope of my invention. Accordingly,I do not desire to be restricted to the exact structure described,except as limited by the appended claims.

I claim:

1. In a loose leaf binder, a back member, a ring metal secured to saidback member, a pair of cover members hinged to said back member, and asheet of binding material covering the entire outer surface of said backand cover members, each of said cover members including a layer ofcorrugated materialadapted to prevent said rings from distorting theouter surface of the binder at the points of contact between the ringsand cover members.

2. In a loose leaf binder, a back member, a ring ROBERT J. DEWAR.

